Burner



Gate 79 GPBLUEMEL BURNER Filed July 24 1922 Patented Oct 7, 1924,

UNITED STATES isuoie PATENT orrr cei.

euscravn- Bavarian, or romeo, c1110, assreuoaro riirzeu'son summers CQMPANY or EO'LEDQ' OHIO, A coarona'rrouror DELAWARE.

tee it known that I, GUsTAyE' Bmim rn, a citizen ofthellnited States, residing at Toledo, in thecounty of Lucas and State of Ohio, have invented certain new and useful lmproi ements in Burners, of which the following is a specification.

This invention relates to improvements in furnaces of thee-lass in which crude petroleum or fuel oil is used for' fuel and its object is to promote the efliciency ofthese furnaces by accelerating and perfecting the c mbustion of the fuel. This result is produced by breaking the oilup into extremely line globules of particles and thoroughly incorporating them with asuiiicient quantity of air to make an extremely rapid'burning mixture.

The breaking up or atomizing of the fuel oil is'p referably accomplished by subjecting the to a plurality of air blasts erected crosswise to the movement of the oil and actiiiiz,1ipon it successively.

The particular embodiment of the invention disclosed in this application includes a burner proyided with aseries of air passages arranged atangles'toeach'other and adapted to direct successive blasts of air against oil supplied through a suitable nozzle. The first air passage is arranged substantially at right angles to the openings in the nozzle; the second passage is arranged substantially at right angles to the first and the thirdis substantially at to the first and the 0M. i. i a

I the I drawings I have illustrated a. selected embodiment of the invention and in hi v Fig 1 is a sectional view through a furnaceequipped with a burner made accordingto the invention; and y Fig. 2 is a similar section enlarged to bet- I ter show the details of the burner,

. chamber 12 which. communicates ati 13witl1 Referring to these drawings, 10 indicates a furnace having a primary combustion chamber 11 and a secondary combustion a siiitable heating chamber or vother. compartment. Compressed air is supplied to the furnace from any suitable source through a pipel l which is' connected wit-h a tubei15 divided at 16 to form the primary air blast I'Zand the secondary airblast 18 The primary air blast communicates with a tubular casing, 19 which. opens into the primary combustion chamber at the bottom and a sec- Bonne s ram-am and my 24, 192.2. serial no. 57am.

ond'aryaii blast communicates with the passage 20 leading ,intotlie secondary combust ion chamber at the end opposite the out- 1a 13. y

Fuel oil is supplied to the burner through a pipe 21 which is controlled by a valve :22. The valve is connected by .a suitable fitting with the upright stem 24 which is suitably supported in tlienplug 25 screwed into the tubular catch pocket 26 atthe bottom the burner. Pet cocksjZT and 28 permit excess oil to be drawn off after the valve 22 has been closed. Oil is supplied under suitable pressure as by a pump and as it escapes from the nozzle 30 carried by thev stem ittis talren up by theprimary air blast atomized and c rried into the primary combustion chain.

ber.

,EX erim ents have shown that the finerthe o l -caiibe broken rpor atomized the quicker and more perfect will be theresultant combustion, and this is particularly true when the breaking up or atom z ng is accomplished by air which thereby becomes thoroughly mixed, and incorporated with thefinely divided oil. Considerable difficulty is met, howeyer,,.in attempting to.

breakup a comparati ely largeamount of oil with a single application of air or within a short time. I therefore prefer todivide theinitial air blast intoithree sections or small blasts arranged so as .to successively strike the oil as it passes from-the nozzle 3Q't0tl ch mbe .1 ng hi t e ad antage of the fact that drops orglobules of any liquid movingthrough space become" elongated in the direction of their movement and therefore present a,relatively largesury face and an easily broken section to an air blast moving transversely to the path 'of movement. I V v 1 a The particular construction here illustrated for accomplishing this result is shown enlarged in Fig. 2. The casing 19 has a substantially cylindrical bore. 31 extending towithin ashort distance of its upper end where an internal shoulder 32- is provided from'the inner edge of which depends a tube 33. The opening in the tube 33 is substantially cylindrical and communicates at its upper end, with. the preferable conical discharge 34. The annular space 35, between the tube and the innerwall of the casing 19jis connected with the boreof the'tube 33' by a plurality of passages 36 arranged to direct air passing therethrough substantially at right angles to the axis of the tube. lt is also connected with the discharge by a plurality of passages 37 cut through the shoulder and arranged substantially at to the axis of the tube. The oil escapes from the nozzle 30 through a plurality of ports 38 in the form of streams moving; substantially horizontally or at right to the axis of the tube 33. That portion of the primary air blast passing through the tube is therefore moving at right angles to these streams and in consequence breaks them up into drops or globules which are driven through the tube at high speed and elongated substantially as indicated at 40. l l' hen these elongated globules reach points opposite the passasges 36 the second section or the primary air blasts strikes them at right angles to their longest axis breaking; them into smaller globules which are driven along lines corresponding; to the resultant ot the first and second air blast and illustrated by the line 4-1. in 2. These globules are also elongated in the direction ot their travel and when they reach points opposite to the passages 37 the third sec tion of the primary air blasts strikes them transverselv to their length and breaks them into very fine particles or atoms which pass into the primary combustion chamber along lines substantially parallel to the axis of he tube The result of this successive breaking up by air blasts is a mixture of thoroughly and completely atomized or nebulized oil and air which burns very quickly and thoroughly.

The passages 36 and 37 may be in'any suitable number but I prefer to make them correspond as closely as possible to complete circles. The opening'in the tube 213 and the passages 36 and 37 mav be ranged a variety of angles but l pr. er that shown because it gril es su' hcient number of successive blasts directed at right angles to the movement of the oil so that it is repeatedly broken up and divided until it en ters the primary combustion chamber in the form oi a mist mixed with air.

The particles of oil in this mixture are so very minute and are so intimately mixed with air that they will burn with Q'reatrapiditv and be completely consumed.

I am aware that changes may be made in the torm. construction and arrangement of the invention. as set torth in th selected embodiment herein. without departing from the scope or sacrificing any of its material advantages. and I theretore preserve the right to make all such changes as tairlv fall Within the scope of the following; claims.

I laim:

1. ln a burner, the combination of atubular casing: having a shoulder at one end. a

of se id tubular flange With the interior of said casing, and other passages connecting; the interior of said casing with the exterior ad acent to the end 0t said longitudinal passage and an oil nozzle located within id tubular flange and having a plurality of ports opening transversely to the axis 01 the casing.

2. In a burner, the combination of a tubular casing: having; an annular shoulder at one end, a tubular flange projecting inwardly trom the shoulder. the outer end of the tubular member terminating in a flame orifice. transverse passages extending through the tubular flange adjacent the shoulder. diagonal passages connecting the interior of the casing; with the flame orifice, anozzle disposed in the inner end of the tubular flange and spaced from the inner surface thereof the nozzle having a plurality of ports opening transversely to the axis of the tubular flange, and means for supplying air under pressure to the casing.

3. In a burner, the combination of a tubular casing having an annular shoulder at one end. a tubular flange projecting inwardly from the shoulder. the outer end oi the tubular member terminating in a flat inc; dame orifice. transverse passages tending through the tubular flange. diagonal passages connecting the interior of the casing: with the flaring flame orifice, a nozzle disposed in the inner end of the tubular flange and spaced from the inner surface thereof, the nozzle having a plurality of ports opening transversely to the axis of the tubular flange. and. means for supplying air under pressure to the casing.

4. The combination with combustion chamber. of a burner comprising a tubular casiie having an annular shoulder at one end. a tubular flange projecting inwardly From the shoulder. the outer end of the tubular member terminating in a flame ori tics in the combustion chamber. transverse passages extending through the tubular flange adjacent the shoulder. diagonal passac'es connecting the interior of the casing with the flame orifice. a nozzle disposed in the inner end of the tubular flange and spaced from the inner surface thereof. the nozzle having a plurality of ports opening transversely to the axis of the tubular flange. and means for supplying air under pressure to the casing. together with a bypass communicatinq with said last menti med means for supplying air under pressure to the combustion chamber at a point remote from the flame orifice.

GUSTAVE BLUEMEL. 

